Automatic sight-feed lubricator.



T. oLso'N a; c. HAMMERSBERG.

AUTOMATIC SIGHT FEED LUBRIGATOR.

P PLIGYATION FILED APB. 15, 1911.

Patented Sept. 9, 1913.'

coLuMnlA PLANOGRAPII cu mm1 rnN n c T. OLSON & G. HAMMERSBERG. AUTOMATICSIGHT FEED LUBRIGATOR.

APPLIOATION FILED APR.15. 1911.

Patented Sept. 9, 1913.

2 SHEETS-SHEET 2.

"llllilllm/ n e 5`\ iittwelllltm mll 3mm/tod Trier-les ossola crimenesEAMMERSBERG, or ,LA GRGSSE. WISGONSIN.

AUTOMITIC SIGHT-FEED LUBRIGADOR.

Specicaton pf Letters Patent Patented Sept. 9, 1913.

evaluaties tiled april. 151,191.1: serial 62.13.31-

To all whom t may concern:

Be it known that we, THOMAS OLSON and CHRISTIAN Hniriunresnns, citizens,of the United States, residing at La Crosse, in the county of La Crosseand State of ll7isconsin, have invented new and useful Improve ments inAutomatic Sight-Feed Lubricators, of which the. following is alsjaecication.

This invention relates to automatic Vsight feed lubricators and hasparticular application to mechanism of the class described adaptedparticularly for use in coimection with locomotives, although we wishitto be understood that we do. not limit ourselves in its usefulapplication to the specific pur-l poses herein set forth by way .Ofillustration.

In carrying out our `invention it is our purpose to. provide a sightfeedlubricator by means of which lubricant may be auto-k matically suppliedto. a pump or the like in predetermined quantities, thereby insuringthat lubricant shall not be wasted, and that the pump or otherVmechanism will be at all times properly oiled.

Still a further obj ect oit our invention is to, j

provide improved mechanism of the class dey scribed, wherein the,l-ubricator proper may be located at a desired point, such fOr in-`stance, as withinV the cab. of the locomotive,l while the pump is, asisusually the CaSe, situated outside of the cab. By such ar-` rangement`the necessity of the engineer going outside of the .cabin upon therunning board or" the locomotive to. lubricate thel pump is obviated.

W'ith thea-beve recit-ed objects and others of a similar nature in viewour invention consists in the construction, combination and arrangementof parts set forth in and tall-` ing within the scope of theappendedclaims.

in the accompanyino' drawings: Figure 1 is a vView partly in elevationand partly in section and showing a locomotive Jprovided with ourinvention. Fig. 2 is a v rtical .sectional view taken through .thelubricator proper.

Referring now to the accompanying draw ings in detail. the letter A., isConventional, illustration of a locomotive body having attached theretoin the usualV marmer,l the.

pump a, in one chamber of which moves the pistoni. From this chamberleads t-he air pipe :2, communicating with the lubricator, the latterbeing indicated as an entirety by the letter L, said pipe 2 beingprovided intermediate its length, preferably adjacent to the pump, witha valve connection 3 in which is located the valve 8@ which opens upwardunder pressure ,or air forced through the pipe Q. by the piston l in thepump a. The lubricator L is divided into tv vo chambers c and d, throughthe medium of the diaphragm a; and within the lower chamber o is leeeteda valve 4,4 seating at le on the port leading `from the pipe 2 Ato thelubrcator. The stem or the valve l contacts with the underside of thelever la which in turn is pivoted to the stud or lug lb secured to thebase of the lubriCatOl body. Carried intermediate the fends -of lthelever is .the valve 5 controlling the port e, leading to the return pipe.(5, the latter being connected to the pump, and having located adjacentto ,saidl pump, the valve connection 7 in which is located the valve 7a."his valve 7a is siijiilar in construction to the valve 3, and when thevalve V3?* is closed on the `down stroke of the piston 1, the valve 5controlling the port c in the lubricator also closes and the valve .7?1is then forced upward `or .open by the pressure in .the return pipe Gbetween said valve and .the valve 5. lt will thus be seen that ou theupward stroke of Ithe piston, the air il) the cylinder is forced.through the pipe 2 Opening the valve 3. and tl'rus permitting the air topass to the lubricator. On the ldown-ward stroke .of the piston, thevalve .3@ closes, as does the valve 5 and the valve 7 simultaneously.opens permitting the 4oil and air which is passed into the return pipe,6 to [low to the rvu-mn The lubricator L is preferably construct- `edas follows; The numeral 9 designates the base plate adapted to bethreaded onto the end of the body of the lubricator, said base platecarrying the ports ,and 4channels controlled .by the valves l and 5. Thenumeral 1.0 designates .the feed valve of the device, while the.character 10i is ithe bonnet surmounted by the packing nut 10.*?, thevalve stem 10C passing through said nut and bon- `net and being operatedby the hand wheel l0. to, control the passage ot the lubricant throughthe portor channel l()e in the diaphragm between the chambers c and d.in lling the chamber the lubricant is admitted through the inlet llcontrolled by thescrew plug l2, while the numeral 13 indicates anequalizing pipe arranged "between the chambers c and Z for equalizingthe pressures between such chambers. If preferred the lever 4;, withwhich are connected the stems of the valves 4l and 5, may be teiisionedthrough the medium of the spring 16 carried by the stud 16a whichextends upward from the base of the lubricating chamber. XVe may alsoemploy the cut-off valve l5 located upon the pipe Q, should the same bedeemed necessary. Y y' From the above description taken in connectionwith the accompanying drawings, the construction and operation of theimproved sight feed lubricator will be readily apparent to those skilledin the art.

Assuming the piston within the air chamber to be in the position shownin Fig. l of the drawings, that is upon the upward stroke, the air i'romthe piston chamber is forced into the pipe 2, 'to the valve 3, saidvalve being raised to permit said air to pass onward through the pipe tothe port controlled by the valve il. Said valve being raised by the airpressure also operates the valve 5 through the lever connection and theoil or other lubricant which has been delivered into the lower chamberAHows into the pipe 6, and as the latter is preferably a continuousslope from the lubricator to the pump, the oil will pass downward intothe pump and to the proper parts to be lu bricated.

The' downward stroke of the piston relieves the air pressure on thevalves 3, l and 5, which valves close, thus shutting oli the airpressure to the lubricator and such downward stroke of the piston alsopermits the valve 7a to be opened by the pressure of oil and air in thereturn pipe 6 between the valve 5 and the valve 7, so that the lubricantmay iow through the valve 7a to the pump. A certain proportion of theaii remains in the chamber in the lubricator at the highest pressurecarried by the engine, and the only waste of air is that which is takeninto thereturn pipe 6 on each stroke of the pump.

Vhile we have herein shown and described one particular embodiment ofour invention,l we wish it to be understood that we do not conlineourselves to all the precise details set forth, as modification andvariation may be made without departing from the spirit of the inventionor exceeding the scope of the appended claims.

of said source to open said connection and conduit simultaneously.

2. The combination with a pump having an air chamber therein, of alubricator com-V prising a body portion divided intoa plurality ofchambers, an air conduit leading from the pump to the lowermost of saidchambers, a lubricant conduit leading from said chamber back to thepump, a valve for each of said conduits, and a connection be tween saidvalves whereby the latter are simultaneously operated by the pressure ofair within the air conduit.V

3. The combination with a pump having` an air chamber formed therein,apiston moving within said chamber, of a lubricator comprising a bodyportion divided into an upper and a lower chamber communicating one withthe other, a valve for controlling the communication between thechambers, an air conduit leading from the air cylinder of the pump tothe lower chamber of4 the lubricator, a check valve controlling thepassage of air from said air cylinder tothe airV conduit, and a secondvalve within the lower chamber of the lubricator and controlling thepassage ot' air to saidcliamber, a con: duit for the lubricant leadingfrom the lower chamber of the lubricator to the;V

a port withinrthe ricator, which port a check valve within said conduit,a

communicates with the lubricant conduit,

and a coniiectionbetween the valves within said lower chamber wherebysaid valves are simultaneously operated to permit the auto-` maticdelivery of lubricant to the pump.l

In testimony whereofwe ailix our signatures in presence of twowitnesses.

THOMAS OLSON v CHRSTIAN HAMM-ERSBERG.Y

Witnesses:

CARL E. ENGELBRETEN, PLEMERT E. Elven.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of latents washington, D. o. Y

